component
T491X156K050AT
Public Made by Adomby adom
KEMET Tantalum Capacitors, CASE-X-7343-43(mm). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownT491X156K050AT
KEMET · Tantalum Capacitors · CASE-X-7343-43(mm)
T491X156K050AT from KEMET, in a CASE-X-7343-43(mm). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | ANODE (+) | passive | Positive termination, identified on the body by a polarity stripe and sometimes a beveled edge; transient reverse voltage is limited to 15% of rated voltage at 25°C, 5% at 85°C and 1% at 125°C, and the part should not be operated continuously in reverse. |
| 2 | CATHODE (-) | passive | Negative termination (leadframe marked as the cathode); the datasheet says solid tantalum capacitors are polar and may be permanently damaged or destroyed if connected with the wrong polarity. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | KEMET |
| Package | CASE-X-7343-43(mm) |
| Category | Capacitors |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| DC leakage current | 7.5 | µA | at +20°C, maximum/5 minutes | 13 | |||
| Dissipation factor | DF | 8 | % | at +20°C, 120 Hz | 13 | ||
| Equivalent series resistance | ESR | 0.7 | Ω | at +20°C, 100 kHz | 13 | ||
| Maximum allowable ripple current (rms) | 486 | mA | 100 kHz, +25°C | 13 | |||
| Maximum allowable ripple current (rms) | 437 | mA | 100 kHz, +85°C | 13 | |||
| Maximum allowable ripple current (rms) | 194 | mA | 100 kHz, +125°C | 13 | |||
| Capacitance tolerance (K) | -10 | 10 | % | K tolerance (±10%) | 2 | ||
| Capacitance change with temperature, −55°C | ΔC/C | -10 | 10 | % | Temperature stability, reference +25°C initial limit | 3 | |
| Capacitance change with temperature, +85°C | ΔC/C | -10 | 10 | % | Temperature stability, reference +25°C initial limit | 3 | |
| Capacitance change with temperature, +125°C | ΔC/C | -20 | 20 | % | Temperature stability, reference +25°C initial limit | 3 | |
| Rated voltage (DC) | VR | 50 | V | VDC at 85°C | 13 | ||
| Operating temperature range | -55 | 125 | °C | Operating temperature range | 2 | ||
| Recommended maximum application voltage | 50 | % of VR | −55°C to 85°C | 14 | |||
| Recommended maximum application voltage | 33 | % of VR | 85°C to 125°C | 14 | |||
| Maximum power dissipation | Pmax | 165 | mW | at 25°C w/+20°C rise, case X 7343-43 | 14 | ||
| Endurance capacitance change | ΔC/C | -10 | 10 | % | 85°C at rated voltage, 2,000 hours; 125°C at 2/3 rated voltage, 2,000 hours | 3 | |
| Storage life capacitance change | ΔC/C | -10 | 10 | % | 125°C at 0 volts, 2,000 hours | 3 | |
| Thermal shock capacitance change | ΔC/C | -5 | 5 | % | MIL-STD-202, Method 107, Condition B, −55°C to 125°C, 1,000 cycles | 3 | |
| Surge voltage capacitance change | ΔC/C | -5 | 5 | % | 85°C, 1.32 x rated voltage, 1,000 cycles (125°C, 1.2 x rated voltage) | 3 | |
| Mechanical shock/vibration capacitance change | ΔC/C | -10 | 10 | % | MIL-STD-202, Method 213, Condition I, 100 G peak; Method 204, Condition D, 10 Hz to 2,000 Hz, 20 G peak | 3 | |
| Rated capacitance | C | 15 | µF | 13 |
CAD (KiCad official)
- Symbol:
T491X156K050AT - Footprint:
Capacitor_Tantalum_SMD:CP_EIA-7343-43_Kemet-X - 3D model: CASE-X-7343-43(mm) (KiCad packages3D, STEP)
- 3D model files:
t491x156k050at-etched.step/t491x156k050at-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);t491x156k050at.step/t491x156k050at.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: KEMET datasheet (23 pp, sha256
271b6cea80c8b55f, retrieved 2026-10-15, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).